diff --git a/Trajectory_Hotspots/Trajectory_Hotspots/float.h b/Trajectory_Hotspots/Trajectory_Hotspots/float.h
index 9ab9fcf..b33f9a9 100644
--- a/Trajectory_Hotspots/Trajectory_Hotspots/float.h
+++ b/Trajectory_Hotspots/Trajectory_Hotspots/float.h
@@ -11,7 +11,7 @@ class Float
     static inline float fixed_epsilon = 0.0000001f;
 
     float get_value() const { return value; }
-    float set_value(const float value) { this->value = value; }
+    void set_value(const float value) { this->value = value; }
 
     Float& operator=(const Float& other);
     Float& operator=(float value);
@@ -84,4 +84,4 @@ class Float
     float value = 0.0f;
 };
 
-Float operator/(const float& value, const Float& divider);
\ No newline at end of file
+Float operator/(const float& value, const Float& divider);
diff --git a/Trajectory_Hotspots/Trajectory_Hotspots/trajectory.cpp b/Trajectory_Hotspots/Trajectory_Hotspots/trajectory.cpp
index f26278d..aa4751d 100644
--- a/Trajectory_Hotspots/Trajectory_Hotspots/trajectory.cpp
+++ b/Trajectory_Hotspots/Trajectory_Hotspots/trajectory.cpp
@@ -1,12 +1,12 @@
 #include "pch.h"
 #include "trajectory.h"
 
-Trajectory::Trajectory(std::vector<Segment>& ordered_segments) : trajectory_segments(ordered_segments)
+Trajectory::Trajectory(const std::vector<Segment>& ordered_segments) : trajectory_segments(ordered_segments)
 {
     trajectory_start = ordered_segments.front().start_t;
     trajectory_end = ordered_segments.back().end_t;
 
-    for (Segment& i : ordered_segments)
+    for (const Segment& i : ordered_segments)
     {
         trajectory_length += i.length();
     }
diff --git a/Trajectory_Hotspots/Trajectory_Hotspots/trajectory.h b/Trajectory_Hotspots/Trajectory_Hotspots/trajectory.h
index 1b43634..89058d8 100644
--- a/Trajectory_Hotspots/Trajectory_Hotspots/trajectory.h
+++ b/Trajectory_Hotspots/Trajectory_Hotspots/trajectory.h
@@ -6,7 +6,7 @@ class Trajectory
 {
 public:
     Trajectory(){}
-    Trajectory(std::vector<Segment>& ordered_segments);
+    Trajectory(const std::vector<Segment>& ordered_segments);
     Trajectory(const std::vector<Vec2>& ordered_points);